Seiko Cal. 0747 - 330

The Seiko 0747-330 represents an important milestone in Seiko's 1982 lineup. Powered by the 0747 caliber with 28j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-5092b9fb4310]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

34mm

Case Thickness

14.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

50m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1982

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